Ammonium, calcium, and leaf senescence in rice

Plant Growth Regulation - Tập 26 - Trang 63-66 - 1998
Kuo Tung Hung1, Ching Huei Kao1
1Department of Agronomy, National Taiwan University, Taipei, Taiwan, Republic of China

Tóm tắt

The possible involvement of calcium in the regulation of ammonium-promoted senescence of detached rice leaves was investigated. Calcium effectively reduced ammonium-promoted senescence of detached rice leaves. The effect of ammonium on the senescence was also significantly reduced by the calcium ionophore A23187. Ammonium-promoted senescence of detached rice leaves may be mediated through blocking the entrance of calcium ions into the cytosol.

Tài liệu tham khảo

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